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CESSNA 400 NAV/COM
(TYPE RT-485A)
PILOT'S OPERATING HANDBOOK
SUPPLEMENT
5.
VOL Control -- ADJUST to desired audio level.
6.
SQ Control -- ROTATE counterclockwise to decrease background
noise as required.
7.
Mike Button:
a.
To Transmit -- DEPRESS and SPEAK into microphone.
NOTE
Sidetone may be selected by placing the AUTO selector
switch (on audio control panel) in either the SPEAKER or
PHONE position. Adjustment of sidetone may be accomp-
lished by adjusting the sidetone pot located inside the
audio control panel.
b.
XMIT Annunciator Light -- CHECK ON (green light illumi-
nated).
c.
To Receive -- RELEASE mike button.
NAVIGATION OPERATION:
8
1.
COM OFF /VOL Control --TURN ON; adjust to desired audio level.
2.
SPEAKER/PHONE (or AUTO) Switch -- SET to desired mode (on
audio control panel).
3.
NA V Frequency Selection - - SELECT desired operating frequency
by either pressing a NA V MEMORY 1, 2 or 3 pushbutton to recall a
preset frequency, or by using NAV frequency selectors.
4.
NA V VOL Control -- ADJUST to desired audio level.
5.
ID-VOX-T Switch:
a
.
To Identify Station -- SET to ID to hear navigation station
identifier signal.
b.
To Filter Out Station Identifier Signal -- SET to VOX to include
filter in audio circuit.
6.
ARC PUSH-TO/PULL-FROM Knob
(If
Applicable):
a.
To Use As Conventional OBS -- PLACE in center detent and
select desired course.
b.
To Obtain Bearing TO VOR Station -- PUSH (ARC/PUSH-TO)
knob to inner (Momentary On) position.
NOTE
ARC lamp will illuminate amber while the course card is
moving to center the course deviation pointer. After
alignment has been achieved to reflect bearing TO VOR,
automatic radial centering will automatically shut down,
causing the ARC lamp to go out and the ARC knob to return
to the center detent position and function as a normal OBS.
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